Folder.



PATENTED FEB. 11, 1908. 0. ROI-ISBN.

FOLDER. 8 APPLICATION FILED MAY 22. 1905.

3 SHEETS -SHEET l.

Zfle J agar/mm No. 878,829. PATENTED FEB. 11, 1908.

0. ROESEN.

FOLDER.

APPLICATION FILED MAY 22. 1905.

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3 SHEETS-$HEET 2.

PATENTED FEB. 11, 1908. 0. ROESEN.

FOLDER.

APPLICATION FILED MAY 22. 1905.

s $HBETS-SHEBT 3.

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ning' web, each of these folders UNITED STATES PATENT OFFICE.

OSCAR ROESEN, OF NEW YORK, N. Y., ASSIGNOR TO ROBERT HOE, OF NEW YORK, N. Y.

roman.

Specification of Letters Iatent.

Patented Feb. 11, 1908.

Application filed May 22. 1905- Sarial 1T0. 261I6l7r .York, have invented certain new and useful Improvements .in Folders, fully described an represented in the following specifica-' tion and theacoompanying drawings, form.

ing a part of the same.

This invention relates to certain improvements in folding machines fol-folding running webs.

In folding certain classes of products, as, for instance, circulars, it has been customary to use two folders on opposite sides of a runoperating .to turn in the edge of the web so as to produce a three-ply roduot, the central ply lying between the lines of fold of eachof the outer plies. This product isthen further folded at right angles to the fold lines referred to;

While this construction is useful in certain classes of work, its capacity is limited to the production of the products which before hemg folded on the right angle lines referred to, consist of only'three plies. It is the object of the present invention to produce a folding a paratus by which any desired number of ongitudinal edge folds may be given a running web, thereby r0- ducing products of the character referre to having a large number of plies.-

\ With this and other objects in view, the invention consists in certain constructions and in certain parts, improvements and combinations as will'be hereinafter fully described and'then specifically ointed out.

In the drawings: Figure 1 illustrates a central vertical section of so much of the folding mechanism as is necessary to an understanding of-the invention. Fig. 2 is a diagrammatic plan view illustratin the run of a web over the folder shown in ig. 1. Figs. 3 and 4 illustrate in end view roducts which may be produced by the fol er illustrated in Fig. 1. Fig. 5 is a diagrammatic plan view illustrating the operation of a modified form of folder. F' s. 6 and 7 are end views of products whic may be roduced on this modified form of folder. ig.

I 8 is a detail plan view of the construction shown in Fig. 1, the osition of the observer the observer being indicated by the arrow B that fi re.

alar er scale t section being taken onv the line Il-D of Fig. 1.

In the particular construction selected to illustrate the invention, the web, marked W, is shown as entering between: an advancing roll 1 and an idle roll 2' which cooperates therewith, this r011 being mounted on arms 3.

asses over a From! the rolls 1, 2 the web plate 4 mounted on an arm 5, t "s' arm being supported on a rod 6. After leaving the plate- 4, the edges of the Web are operated upon by a pair of edge-folders 7, 8, the folder 7 being mounted on an arm 9 and the folder Son 2: similar arm which is behind the arm 9'. These arms arein turn supported by the .cross rod 6. The= edge-folders 7, 8-" operate to turnin the opposite edges of the web, as indicated at 10, 1n Fig. 2, the central part ofthe web being'maintained flat or're .ma-ining. undeflected during the folding operation. After leaving the folders 7, 8, the web passes over a forwardin roll 11 with which cooperates an idle rol 12, this roll being mounted in arms 13. The rolls 11:, 12

olperate both to advance the web and'to lag t e fold. After leaving these rolls, the we passes over a plate 14, and is subjected to" the action of a pairof edge folders 15-, 16, the-- folder 15 being mounted on an arm 17 Fig. 10' is a section onthe line C0 0 Fi 1. Fig. 1.1 is a section,.on

and the folder 16 on a similar arm which is behind. the arm 17. The folders 15, 16

otperate' on the previously fplded edges of t e web and turn them in, the lines on which the foldersact being indicated at 18in Fig. 2. During thisoperation the central part of the web is maintained flat or remains undeflected. The web then passes between. a

pair of fold laying rolls 19, 20,.after which it asses to the instrumentalities which act ther upon it, such, for instance, as cutting and folding rolls.

The construction illustrated in Fig. 2 is, designed to produce a five ly product, each side of the web being fol ed over, as indicated at 10, and both the folded sides bein again folded over, as indicated at 18. I

' the folded edge of the web which is farthest from the observer in Fig. 2 is folded over by the folder so as to lie next the top ply as it is seen in that figure, the product illustrated in Fig. 3 will be' roduced. If, however, the folded edgewhic is nearest the observer in I Fig. 4 Will be produced.

this figure be folded over by the folder so as to lie next the top ply, the product shown in The construction shown in Fig. 5 is similar to that illustrated in Fig. 2 except that it is intended to produce only a four ply product. The folder which produces the first edge fold on one side of the web is, therefore, omitted. In'the construction illustrated, the web is shown as being folded in by the folder at. 10 on the edge nearest the observer but as unfolded on the other edge. Both edges are thereafterfolded on the. lines 18. If the edge of the web which is farthest from the observer be folded so as to lie next the top ply, the roduct illustrated in Fig. 6 will be produced? If, however, the edge nearest the observer be folded so as to lie next the top ply, the roduct illustrated in Fig. 7 will be produced? If ,more plies be desired, they can be produced by adding an additional folder or pairs of folders, according tofth product desired.

This construction of'folder is very advantageous for folding certain kinds of printed matter, as, for instance, circulars. The product of the folder lends itself readily to the action of the cutting devices and the subsequent folding devices when such devices are employed, as will usually be the "case, in that 1t enables a circular containing alarge number of pages to' be folded into a small com ass, and further enables the folders an devices which are to subsequently act upon the web to be very com' ,is possible to run a wide web, such, for instance, as a web which is three or four, or even a greater multiple of the width of web shown in either Figs. 2 or 5, to cut this Web by proper slitters of the usual type, sub'ect it to the actionvof sets of cutting and fol '11g rolls, such, for instance, as" is dia ammatic ally indicated at 21 and 22, an to mount the sets of rolls which could be independent,

- on two arallel shafts operated from a single train 0 gearing.

carried into effect.

Changes and variations may be made in the constructions by which the invention is The invention is not, therefore, to be limited to the s ecific constructions hereinbefore describe and illustrated in the accompanying drawings.

What is claimed is 1. The combination with a folder operating to form'a side fold in a web runm thereover one ply of the folded product thus formed remaining undefiected during the folding operation and the fold being parallel with the run of the web, of a second folder operating to form a second side fold byturning over the already folded side of the web, a ply of the folded product thus formed remaim undeflected during the folding operation an thebfold being also parallel to the run of the We 2. The combination with a folder operat 1 ing to form a side fold ina .Web

thereover, one ply of the folded product thus formed remaining undeflected during the folding operation, of folders for forming side folds by turnin over the sides of the web, a

ply of the fol ed product thus formed remaining un'deflected. during the folding. o

eration and the folds formed being para el to the run of the Web. 1

3. The combination with folders operating to form side folds in a Web ru thereover,

said folds being parallel to the run of the web,

of a folder formlng a second fold in the web,

saipd) fold being also parallel to the run of the we 4. The combination with folders operating to form side folds in a web running thereover, said folds being parallel to the run of the web, of a folder operating to form second side folds in the web, said folds beingv also parallel to the run of the web.

In testimon whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

' OSCAR ROESEN.

Witnesses WILLIAM N IXON, THORNTON DOWELL. 

